Americium 241 undergoes radioactive decay to produce neptunium 237. Which partiele needs to be added to this equation to show that the total
numbers of neutrons and protons are not changed by the reaction?
AM - "Np+?
A He
B He

Diffusion and osmosis are forms of passive transport

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.